soil map units where 34A Saunaka is dominant
Soil properties
Property | Value |
---|---|
Geographic distribution | Viti Levu |
Landscape position | Relict high terraces in the lowlands and foothills |
Soil parent material | river alluvium from acidic rocks |
Slope | Flat to gently undulating (0-3°). Smooth microrelief. |
Surface outcrops | No surface rock outcrops. No surface stones or boulders. |
Brief soil profile description | - |
Soil profile texture | 0-30cm loamy sand. 30-125cm+ clay. |
Minimum effective rooting depth | >125cm. Note low subsoil nutrient status and seasonal waterlogging. |
Soil pH (acidity) | 0-125cm strongly acid. |
Salinity | Non saline. |
Soil fertility under natural conditions | Very low potassium (K), phosphorus (P), and nitrogen (N). |
Soil moisture regime | ustic |
Susceptibility to drought | In normal years soil moisture deficits of 60 days are experienced sometime in the period May to October. |
Soil drainage | Imperfectly drained. |
Susceptibility to waterlogging | In normal years waterlogging below 30cm may occur for up to 60 days sometime in the period November to April. |
Susceptibility to flooding | In normal years infrequent (1-2 times per year) short duration (1-2 days) surface flooding and ponding may be experienced sometime in the period November to April. |